Need help booking?
Unpublished phone-only deals available
ALN to PHN: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Port Huron (St Clair County International Airport)
481 mi
773 km · 418 nm
1h 31m
estimated nonstop flight time
—
time difference · heading northeast
See live ALN→PHN fares Phone-only fares on this route — call free
Flight time details
481 miles nonstop takes roughly 1h 31m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ALN — St Louis Regional Airport · Alton/St Louis, United States
- PHN — St Clair County International Airport · Port Huron, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Near PHN
Frequently asked questions
How far is ALN from PHN?
The flight distance from Alton/St Louis (ALN) to Port Huron (PHN) is 481 miles (773 km, 418 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to PHN?
A nonstop flight takes about 1h 31m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from ALN to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–PHN that never appear on search engines, with no booking fees.